Comment 31 for bug 1750656

Reviewed: https://review.openstack.org/547015
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-rabbitmq_server/commit/?id=23bd341129bc9fc6449f3b1f38f07fb4914aa298
Submitter: Zuul
Branch: master

commit 23bd341129bc9fc6449f3b1f38f07fb4914aa298
Author: Jesse Pretorius <email address hidden>
Date: Thu Feb 22 14:48:19 2018 +0000

    Fix cache update after initial apt_repository fail

    If apt_repository fails to update the apt cache after updating the
    configuration, retries don't register there was a change and so no
    attempt is made to update the cache by the module on the second attempt.
    This failure can result in a failure to install packages.

    This change adds an apt module task to update the cache if the
    apt_repository task registers a change. This means updating the cache
    will get retried on failure and no longer fail silently.

    Change-Id: Id059dbec3466cb1ef3ea567249f52384a8ade515
    Partial-Bug: #1750656